Hi there,
I have summarized all the details and will provide you with clear, concise proposal.
We are a team of developers with 10 years of experience in various technologies like, Mobile App development,Web App development, Desktop App development etc.
I can see you want to develop website consultancy, installation, designing, testing, commissioning & maintenance of Fire Fighting, Fire Alarm system, HVAC & Security System.
We have worked on several similar projects like you have described, and can deliver quality work to tight deadlines.
You can see an example of one of those projects in my portfolio here: https://www.freelancer.in/u/singhkirti1989
I'm interested to hear more about the project and about the complete requirements.
If you award me the project I'd be very happy to discuss this further and get started for you as soon as possible.
Thanks!